System for delivering an anvil assembly to a surgical site
First Claim
1. A circular stapling anvil assembly comprising:
- a center rod having a plunger having a finger;
an anvil head assembly rotatably secured to the center rod, a rotatable cam member supported on the center rod, the plunger being spring biased for movement into contact with the cam member to rotate the cam member and effect movement of the anvil head assembly in relation to the center rod from a first tilted position to an operative non-tilted position;
a first suture for holding the plunger in a retracted position;
a retrieval suture connected to the anvil head assembly; and
a spacer supported on the retrieval suture adjacent to the anvil head assembly, the spacer preventing the anvil head assembly from being approximated in relation to a shell assembly of a surgical stapling device into a firing zone when the spacer is clamped between the anvil head assembly and the shell assembly.
1 Assignment
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Accused Products
Abstract
An anvil assembly delivery system includes an anvil assembly having a center rod and an anvil head assembly pivotally secured to the center rod a flexible tube having a first end configured for oral insertion into a patient and a second end engaged with the anvil assembly, and a retrieval suture connected to the head assembly positioned to extend from the anvil assembly in a direction opposite to the flexible tube. The anvil assembly delivery system also includes a spacer suture tube positioned adjacent the anvil head assembly and defining a suture channel, which is supported on the retrieval suture and is dimensioned to prevent the retrieval suture from becoming trapped in the staple line of a stapling device. In an embodiment, the spacer is a suture tube defining a suture channel which receives the retrieval suture.
516 Citations
10 Claims
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1. A circular stapling anvil assembly comprising:
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a center rod having a plunger having a finger; an anvil head assembly rotatably secured to the center rod, a rotatable cam member supported on the center rod, the plunger being spring biased for movement into contact with the cam member to rotate the cam member and effect movement of the anvil head assembly in relation to the center rod from a first tilted position to an operative non-tilted position; a first suture for holding the plunger in a retracted position; a retrieval suture connected to the anvil head assembly; and a spacer supported on the retrieval suture adjacent to the anvil head assembly, the spacer preventing the anvil head assembly from being approximated in relation to a shell assembly of a surgical stapling device into a firing zone when the spacer is clamped between the anvil head assembly and the shell assembly. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification